Table 5 Overview of dual substrate conversion experiments under elevated partial pressure of carbon dioxide (pCO2)
Experiment | Description | Conditions | |||
|---|---|---|---|---|---|
Duration (h) | pCO2 (bar) | Biomass (g VSS L−1) | Soluble COD reactora (g L−1) | ||
I | Reference conversion rate of glucose, glycerol and mixed substrate (1:1 molar ratio) under elevated pCO2 | 7 | 5 | 4.4 | 3.7 |
II-A | Mixed substrate effect on carboxylates production under elevated pCO2 (1:1 molar ratio) | 0–216 | 5 | 4.4 | 5 |
II-B | Effect of higher substrate concentration to increase the substrate-to-biomass ratio (S/X) on carboxylates production under elevated pCO2 | 216–376 | 5 | 2.1 | 10 |
II-C | Mixed substrate effect on carboxylates production under elevated pCO2 (1:1 molar ratio) + additional electron donor (formate—5 mM) | 376–596 | 5 | 2.0 | 5 |